think about a girl on a swing. when is the kinetic energy of the girl zero?
question 5 options:
at the bottom of the swing
when the girl is swinging backward
it is never zero
when she stops moving at the top of the swing

Which type of reaction always has an element and a compound as reactants

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.